Добрый день, сейчас я пытаюсь реализовать выпадающей список с возможными значениями | Код |
public class FindMenuItemWindow extends JInternalFrame implements RefreshNeed{
private boolean isPerfomed=false;
private JTextField jTextField3=null;
public DefaultListModel cNazvModel=new DefaultListModel();
public Vector cNazv=new Vector();
public JTextField getJTextField3() {
if (jTextField3 == null) {
jTextField3 = new JTextField();
jTextField3.addFocusListener(new FocusAction(jTextField3,cNazvModel,cNazv,this));
jTextField3.addKeyListener(new KeyTypeAction(jTextField3,cNazvModel,cNazv,this ));
}
public boolean isRefreshNeed() {
return isPerfomed;
}
public void setRefreshNeed(boolean i) {
isPerfomed=i;
}
private JButton getJButton6() {
if (jButton6 == null) {
jButton6 = new JButton();
jButton6.addActionListener(new RezultAction(this));
}
return jButton6;
}
}
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Эт основной класс. Я пропустил добавление на соответствующий панель и подобное | Код |
public class KeyTypeAction implements KeyListener {
private DefaultListModel model;
private JTextField owner;
//private Vector addedValues;
private Vector list;
private String prevText;
private RefreshNeed ref;
public KeyTypeAction(JTextField owner,DefaultListModel model, Vector list, RefreshNeed ref)
{ //addedValues=new Vector();
this.model=model;
this.owner=owner;
this.list=list;
this.ref=ref;
prevText="";
}
public void keyPressed(KeyEvent e) {
}
private void init()
{
prevText="";
model.clear();
for (Iterator it=list.iterator();it.hasNext();)
{
String element = (String) it.next();
model.addElement(element);
}
}
public void keyReleased(KeyEvent e) {
System.out.println("keyrealised"+model.getSize());
if (e.getKeyCode()==KeyEvent.VK_BACK_SPACE || e.getKeyCode()==KeyEvent.VK_DELETE)
{ System.out.println("someone action");
String s="";
try{
s=owner.getDocument().getText(0,owner.getDocument().getLength());
}
catch (Exception e1) {
e1.printStackTrace();
}
for(Iterator iter=list.iterator();iter.hasNext();)
{ String val=iter.next().toString();
if (val.startsWith(s)&& model.contains(val))
model.addElement(val);
}//System.out.println("backspace: " +model.size()+" "+deletedValues.size());
}
if (e.getKeyCode()==KeyEvent.VK_DOWN||e.getKeyCode()==KeyEvent.VK_KP_DOWN)
System.out.println("down");
if (!Character.isLetterOrDigit(e.getKeyChar())) return;
String s="";
Document doc=owner.getDocument();
if (doc.getLength()==0)
{init();
return;
};
try {
s=doc.getText(0, doc.getLength());
} catch (BadLocationException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
if (prevText.startsWith(s))
{ for (Iterator iter = list.iterator(); iter.hasNext();)
{ String val=iter.next().toString();
if (val.startsWith(s)&&!model.contains(val))
model.addElement(val);
}
//out(s);
prevText=s;
return;
};
if (s.startsWith(prevText)||(ref.isRefreshNeed()))
{
for (Enumeration en=model.elements();en.hasMoreElements();)
{//System.out.println(iter.hasNext());
String val=(String)en.nextElement();
if (!val.startsWith(s))
model.removeElement(val);
}
System.out.println(model);
// out(s);
prevText=s;
return;
};
init();
}
private void out(String s )
{System.out.println(" get text: "+s+"prevText"+prevText);};
public void keyTyped(KeyEvent e) {
}
}
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Вот реализация экшена | Код |
public class FocusAction implements FocusListener {
private JTextField owner;
private JList list;
private Popup popup;
private FindMenuItemWindow findMenuItemWindow;
private Vector values;
private DefaultListModel model;
private RefreshNeed ref;
public FocusAction(JTextField owner,DefaultListModel model, Vector values,RefreshNeed ref)
{
this.owner=owner;
this.model=model;
this.values=values;
this.ref=ref;
list=new JList(model);
}
public void focusGained(FocusEvent arg0) {
owner.setCaretPosition(owner.getDocument().getLength());
owner.moveCaretPosition(0);
Point location=owner.getLocation();
SwingUtilities.convertPointToScreen(location, owner);
location.y+=owner.getHeight();
if (ref.isRefreshNeed()) refresh();
if (model.size()==0) return;
System.out.println(model);
System.out.println(list.getComponentCount());
list.setPreferredSize(new Dimension(owner.getWidth(),list.getComponentCount()*20));
list.setBorder(BorderFactory.createEtchedBorder());
location.x-=owner.getX();
popup=PopupFactory.getSharedInstance().getPopup(owner,list, location.x, location.y);
popup.show();
}
public void focusLost(FocusEvent evt) {
if (!(model.size()==0))popup.hide();
}
private void refresh()
{
model.clear();
System.out.println(values);
for(Iterator iter=values.iterator();iter.hasNext();)
{ String val=iter.next().toString();
model.addElement(val);
}
}
}
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| Код |
public class RezultAction implements Action {
public void actionPerformed(ActionEvent arg0) {
findMenuItemWindow.setRefreshNeed(true);
if (findMenuItemWindow.getJTextField3().getText().length() != 0)
{String cSlovoInNazv = findMenuItemWindow.getJTextField3().getText();
findMenuItemWindow.cNazv.add(cSlovoInNazv);
}
}
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Некоторые вещи я опустил (конструкторы и другие методы) Теперь вопрос, как сделать чтоб выпадающий список работал как надо ? =) ЗЫ прошу прощения за мой русский язык и пунктуацию Это сообщение отредактировал(а) magicfly - 18.5.2007, 15:15 |
Выпадающей список с возможными значениями 
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